A handsome merman named Wakasa has made his home in the bathtub of Tatsumi, a high school student who otherwise lives alone. Their friends gather around the tub to sing karaoke, dress up, and play all kinds of inappropriate games...love is in the air, until suddenly their precious tub gets caught in an explosion! Tatsumi's sketchy uncle, Hisatora, appears in this volume, along with his collection of self-formulated bath salts! The fourth volume of this popular bath comedy brings the story to the boiling point!

'" Wakasa wants to write a book! Before he can do that, he''s got to master a few rudimentary skills--like learning how to write the word merman. After that, things get dirty when Takasu and Wakasa decide to make mudballs. Meanwhile, Tatsumi''s uncle is cooking up his own crafty creations: romantic bath salts! And who better to test them out but the merman in Tatsumi''s bathtub? "'

Mellow and responsible Tatsumi has gotten pretty uesd to his new roommate--the energetic and needy merman, Wakasa--who has taken what seems like permanent refuge in his bathtub. While regular visits from Wakasa's undersea friends and Tatsumi's affectionate little sister have become commonplace, the bathrub suddenly seems a little less safe when a shark appears. Is their hungry new acquaintance friend or foe? Whether it's testing new bubble bath, hosting a butler cafe, or training for the Olympics, it's never a dull day in Tatsumi's bathroom.

The ill-fated Tatsumi, who used to live alone, is now the unwitting host to a growing menagerie of undersea creatures. His bathtub has become the abode of the self-indulgent merman, Wakasa, with regular visits from his aquatic friends--the octopus Takasu, the shellfish Maki, the jellyfish Mikuni, the shark Agari, and the newest member, the starfish Goromaru. With the New Year upon them, it's time for sweets, bean-tossing and more, but can a tub this small possibly hold a crowd this large?

'" Ryo Sakaguchi has a deep, dark secret: he''s a fudanshi--a boy obsessed with BL. While he has trouble understanding how others don''t find the same bliss he does from his unusual hobbies, that doesn''t make it any easier for Ryo to buy his precious manga from the "girls" section of the store, or any simpler explaining the world of boys' love, shipping wars, and doujinshi circles to his best friend Nakamura. Will Ryo find other fanboys to share his hobby with, or is he doomed to sit alone on his throne of BL romance? "'

Rough and tumble juvenile delinquent Kanji joins the search for the truth about the Midnight Channel.

Uno Issei is still in high school when his mother remarries. His mom's new husband, Masaru, is a nice enough guy, he just happens to be a unicorn. Sometimes in the form of a talking horse, sometimes in the form of a beautiful man, Masaru is determined to run the household while his wife is away and win Issei over. For better or worse, now Issei is stuck teaching this unicorn man how to be a good dad in this idiosyncratic comedy about the magic of family.