The Seal Takeda-kun アザラシの武田くん

When I transferred to a new school, I found a seal among my classmates...? A transfer student, Yamanashi, has a secret that he cannot tell anyone. His daily life is swallowed up into a whirlpool of chaos by his seatmate Takeda, who is sitting next to him. By chance, they find out each others secrets, and begin a special relationship with each other. A very chaotic school comedy.