Top 10 Best Onsen Anime Episodes

It’s summertime! And with summertime comes vacationing and relaxing. Today, we want to focus on one of the favorite pastimes of all anime casts, the onsen visit! While visiting a hot spring in North America is a bit off the beaten path, in Japan, they are a part of the culture, and anime episodes show that. They have gender-separated bathing areas (sometimes with no shortage of people who want to challenge that), soaking in hot pools, wearing yukata or robes, playing games like ping pong or karaoke, and bonding with the people you came with to visit. With these things in mind, here are our Top 10 Best Onsen Episodes!

10. Naruto

  • Episode: 101
  • Episode Title: Gotta See! Gotta Know! Kakashi-Sensei's True Face!

Our favorite ninja trio is back! In today’s episode, they are on a mission to learn what Kakashi Sensei could be hiding under his mask. After several failed attempts, the gang decides to go to an onsen ryokan (hot springs inn) to see what lies underneath his plot-armored face-covering. After the group fails at seeing it with the hotel’s food, Naruto and Sasuke wait in the hot waters on the men’s side for Kakashi to arrive, while Sakura soaks solo on the womens’ side. Will they see beneath his mask? And where did this extra danger come from? The next day is a tried one for the gang, who spent their whole day waiting to see Kakashi’s face, but at least their sensei got to relax!

9. Slime Taoshite 300-nen, Shiranai Uchi ni Level Max ni Nattemashita (I've Been Killing Slimes for 300 Years and Maxed Out My Level)

  • Episode: 4
  • Episode Title: We Went to a Dragon's Wedding

After having a little too much to drink, the gang is invited to stay at the volcanic hot springs resort, and though it is closer to the end of the episode, the adventure of relaxation begins! Everyone hits the mineral waters and soaks while they catch up and learn a little more about each other, including their family lives. Watch as these cuties kick back and enjoy themselves for an evening of relaxation! There is drinking, letting go of the day’s tensions, and a group of people enjoying their company and conversation! Though it is brief, Slime 300 satisfies with its onsen adventure!

8. Boku no Hero Academia 3rd Season (My Hero Academia 3)

  • Episode: 2
  • Episode Title: Wild, Wild Pussycats

After semester one at UA High, it’s summer, but heroes don’t get to slack off! The school visits the hot spring before a training session, and they meet Kota. Kota is a hero-hating young boy who is stationed on the wall separating the boys' and girls' sides of the hot springs. While the heroes soak and scheme to get to the other side, it looks like Kota was the right guy for the job. Our heroes learn more about his boy’s healing heart and relax before their upcoming and unforgiving training camp. Though their time to relax in the onsen is brief, the team is able to relax before the training gets tougher!

7. Gintama

  • Episode: 131-134
  • Episode Title: Fights Often Ensue During Trips, Briefs Will Unavoidedly Get Skidmarks, Gin and His Excellency’s Good For Nothing, and Be Very Careful When Using Ghost Stories

Gintoki and the gang are off to the hot springs! The gang’s downstairs landlady has a friend from the old day who runs an inn, and she sends the group to the hot springs. Only when they arrive does it become clear that the crafty old lady has set them up to go to a place that looks- and is- haunted! More than that, Gintoki’s friends get possessed, and Gin realizes the old lady has sent him to work in her friend’s hot spring! As Gin gets more and more scared, Gintama’s signature brand of pop culture and gag comedy delivers.

Gintama takes ninth place for being ridiculous and funny but loses points for Gintoki not doing much of the relaxing himself! The ghosts of Japan’s famous military heroes all quarrel, like they did in real life, and all know the struggle of briefs and skid marks (yes, those skid marks). It is a ridiculous hot springs trip, where everybody but Gin relaxes, as he uses a pack of peanuts to control the spirits who misbehave. Something else lurks in that background of Gin’s creepy hot springs stay, and he loses the patience to wait for it to happen. Watch as the crazy gets crazier in Gimtama’s four-episode onsen adventure!

6. Nisekoi (Nisekoi: False Love)

  • Episode: 9
  • Episode Title: Hot Springs

The class ventures by bus to the countryside to work together on a weekend retreat. After traveling, lighting fires, and cooking their first meal, the class ventures to a hot springs hotel. As is the usual case, there is no shortage of guys looking to push their luck by pushing their boundaries.

Playing card games to relax with their class (and learn that their schoolmates have no poker face), everyone shares another meal ventures to the hot pools. After Raku is tricked into getting into the girls’ pool without realizing it, he finds himself relying on his faux girlfriend, Chitoge, to escape the springs unharmed. Just when the awkwardness cannot get any worse, all the rest of the girls jump in the springs before he can get out. Lots of laughs and awkward moments fill this hot springs episode that delivers on all fronts.

5. Yamato Nadeshiko Shichihenge (The Wallflower)

  • Episode: 9 and 10
  • Episode Title: Rising Steam, Splattered Blood & the Rain of Love at the Hot Spring

Shortly after Sunako meets Noi, the girlfriend of Takanaga, she finds herself strangely knocked out at the start of the episode. When she comes to, she has been kidnapped by her housemates and made to attend a hot springs weekend! The horror! Things start to get complicated as a weekend retreat at the business one of Ranmaru’s love interests. A dead body is found, and a murderer is afoot!

While her friends are playing karaoke and couples are looking for alone time, Sukano is out looking for clues! After the cruelty of being taken away for a relaxing weekend, Sunako never thought she could investigate a real-live murder. The gang bonds, protect each other when it counts and helps to find that murderer!

4. Tensei shitara Slime Datta Ken (That Time I Got Reincarnated as a Slime)

  • Episode: 18
  • Episode Title: Evil Creeps Closer

The Demon Lord Malim has calmed down her calamitous ways, and the harem visits an onsen to get some soaking in. Though she has her mind on things other than destruction, she still has enemies out in the world. Rimuru hangs out with a sake-sipping guy as they talk about their plans for trade and maintaining the reputation of the monster town being friendly. On the girls' side, there is a contest for breath-holding and laughing in between matches.

While everyone is giggling and unwinding at the onsen, trouble is brewing. Someone with Demon Lord level power has been tricked into coming to destroy one of Rimuru’s friends. It is a good thing that the crew got their relaxing in early because they have a fight ahead of them!

3. Fruits Basket

  • Episode: 11
  • Episode Title: What a Wonderful Inn

Fruits Basket is always a favorite for shoujo lovers, but they score high on this list for how great their hot springs trip turns out to be! For White Day, Tohru is treated to a hot springs trip at the Soma family hot springs! After getting everyone Valentine’s Day chocolates, Momiji surprises Tohru and housemates with this exciting adventure.

Tohru and the Somas go to the hot springs and relax. Though Tohru initially gets lightheaded from the water, she winds up settling in, learning more about the Soma family, and doing an awful job at ping pong. Tohru learns more about her favorite Somas, and everyone has an excellent time on the trip. Only after letting the small-statured Momiji sleep in her room does Tohru realize that he is only a year beneath her in school! Though the new production of Fruits Basket has more visual appeal and better music, the 2008 version has more humor and feels, so they are both worth a watch! Watch a hot springs trip

2. Jaku-Chara Tomozaki-kun (Bottom-Tier Character Tomozaki)

  • Episode: 10
  • Episode Title: Multiplayer Games Have their Own Special Appeal

The gang looks forward to some time away from home and travel by train to get some sun and BBQ on a camping weekend. They split up tasks, get their campsite going, and have some good laughs as the sun fades. Then, the slow-burn romance gets a little hotter then the group goes to soak the next day. The girls and guys soak and separately, and they share and learn lots about each other!

The laughs continue as Tomozaki-kun is so *ahem* big that it catches all the guys' attention! After soaking, the group decides to do a test of courage event while they take separate routes back, and the couples start to tease each other while getting scared in the dark. Bonds strengthen, and boundaries are tested in this wilderness excursion!

1. Black Clover

  • Episode: 71 and 72
  • Episode Title: The Uncrowned, Undefeated Lioness, Saint Elmo's Fire

Fuegoleon Vermillion is out of action after a fight with the Eye of the Midnight Sun, and their new captain is the monster of a woman, Mereoleona Vermillion. First thing’s first, and they’re off to the hot springs training camp! It sounds like a lot of fun, but this takes first place because of how much everyone needs relaxation at the end of Mereoleona’s training camp and how much everyone gets something out of it! After gaining new skills and nearly losing their lives, the Crimson Lion Kings and those training with them make their way through a volcanic strong magic region.

After making it to the springs, the guys and girls split the natural springs into two sides and get to soaking and relaxing. Noelle learns more about her late mother and gets some words of encouragement from Mereoleona, and while some of the guys look to peek into the girls' side of the springs, Asta affirms that his heart is with sister Lily! Watch everyone bond and make personal gains in this episode of Black Clover!

Final Thoughts

Whether you visit in the summer or the winter, there is something magical about resetting and relaxing while enjoying the company of those you came with. Get your onsen-episode fix with these episodes today! Which episode makes your watchlist next? Will it be the ridiculous episodes of Gintama? Or maybe the playful and sentimental Bottom-Tier Character Tomozaki? Let us know in the comments!

Nisekoi-2-Wallpaper Top 10 Best Onsen Anime Episodes


Author: Mool Basil

Hi! I'm Mool Basil! I'm just your everyday salarywoman, who spends her evenings reading and writing about anime, and playing in a blues band. I spend my off days at the K-Spa and catching up with the new week of Shounen Jump and my other favorite chapter releases. Thanks for reading, hive members!

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