Angel's Feather -Kohaku no Hitomi-

An explosion happens in the dojo Shou went to before. Shou, who was taking a break from school, happened to meet the "brother next door" there, Kimura Kaoru, who he had learned kendo together with. Shou was happy to see "Kaoru-san" again, whom he longed after in olden days. But Kaoru...--- Shou caught a cold. Is the cold medicine that Kai made for him suddenly making him grow dog ears?! There is a quarrel between the brothers, a long desired reunion, and a story with a comedic touch unfolds on the stage of Yuusei Academy. This is an addition to the original story of Angel's Feather.

It begins when Hamura Shou comes to Yuusei Academy, from there it branches out into the truth behind his past, and his twin brother, Kai's as well (though they both have the same name, they are referenced differently). It also portrays shōnen-ai between Kai and Nagi (his supposed best friend).