今日から俺はロリのヒモ! (Kyou kara Ore wa Loli no Himo!)

Plot

I, Tendou Haru, who was somehow aiming for becoming a mangaka, became a winner in life. Super rich bishoujo elementary school student, Nijou Touka was a big fan of mine, on top of that, she said that she is going to be my patron. Just like that, my ideal living off someone lifestyle had started.