(Completed) (Harem, Crossover) After an unexpected mishap, Qiuyue Luoren finally got together with his childhood sweetheart. Just two months later, even eating goji berries by the bowlful couldn't stop his legs from trembling.
At a critical moment, he unlocked the Spend Money to Get Stronger System. As long as he spent money, he could have limitless stamina.
“I used to want an ordinary life, but my girlfriends wouldn't let me. I have to build an extraordinary body...”
And so, light novels like KonoSuba: God's Blessing on This Wonderful World! and Classroom of the Elite burst onto the scene. But the System's true power was only just beginning to emerge...
Confirmed heroines: Tianhe Baixue, Tengzhigong Ningzi, Busujima Saeko, Haibara Ai.
(The VIP group link is inside. Send the group owner a screenshot showing you've bought every chapter to join. There are some good things inside.)
The system is too powerful; the protagonist has no idea how to use it, making him seem rather dim-witted.