Shuu Koibuchi

Shuu is Kuranosuke’s half-brother and their dad's right-hand man. He's got a complicated history—he stumbled upon his dad cheating with Kuranosuke's mom when he was little, leaving him with a serious fear of women. But everything changes when he sees Tsukimi all dolled up; he’s suddenly smitten, even if he doesn’t recognize her when she’s in her usual getup. Once he does, he’s all in, cheering her on and bringing her delicious cakes. He’s there for her when she’s feeling down, and when he finally confesses his feelings, it leads to a hilarious misunderstanding, prompting him to pen a marriage proposal!