Sawada Tsunayoshi is a famous yaoi manga artist who specializes in hardcore BL scene, with his newest manga titled, 'But Sensei, This Is So Wrong'. He never knows what love is. His life turns upside down when he meets the P.E. teacher Yamamoto Takeshi who finds out that Tsuna is a secret fudanshi! What will Tsuna do when Yamamoto tricks him into a date? Yaoi. AU. TYL!80 x TYL!27.