"Brother, are we really taking a bath together?"
And so, a forbidden bathing experience began. Me, my sister, and childhood friend—one man and two women—are sharing one bath. After involuntarily "overflowing," the sister's secret love come out?!
This is a young romantic comedy that won't let you say, "it's over!"

Note: The standard TV version of the anime will debut on January 6 at 1:00 a.m. on Tokyo MX, while the complete version will stream on the ComicFesta Anime Zone website.
This entry reflects standard TV version of the anime.