The Journey of the Strongest Protagonist in the Second Dimension

Reborn in the second dimension, replacing the existence of Izumi Masamune, and also brings the strongest protagonist system. As long as you complete the task, you can become stronger. What task? Picking up girls, of course. As long as she is a beautiful woman, she must be cared for well. The first world, Mr. Eromanga. The rebirth education of the autistic sister, ahem, that is what the brother has to do. PS: Love all living things, invincibility, coldness, both daily and extraordinary. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.