Dragon Raja: Lu Mingfei Returns from Japan

Lu Mingfei, the male protagonist of a Japanese light novel who has returned from another world, exudes an aura of gentleness.
I've returned from the world of light novels, and I've only done three things: build a harem, build a harem, and build a damn harem!
P.S.: This is a well-organized walkthrough, not mindless. It focuses on everyday school life but retains the original settings and important plot points. The settings are based on the first three books of Dragon Raja, with the latter three books serving as supplements.