Choki's manga / #poker face male(16)

Uke is very pretty but because of that other guys (boys school) hit on him so he acts violent to protect himself. Seme views uke like a cat and is called the beast tamer

Uke can talk to birds and seme can borrow a bird's body. Seme realizes uke can talk to birds while he is in a crow's body

Theyre not actually siblings. The FL gets isekaid into the novel and becomes the girl who was actually kidnapped from a diff family and raised as the sister of ML. But ML seems to have known from the beginning. FL can see auras and can purify others feelings. ML has control over shadows. Its quite cute because we get to see the story since FL is a baby