The True Power of A Shadow Monarch: Solo leveling X Multiverse

Have you ever thought wow, jinwoo's power is Op is fck but why don't he used it in its true potential? if yes then this fanfic is for u. This is pretty much a wish fulfillment so Don't expect deep story arcs. What you will get, Top Notch action, show off, Harem, smart mc, not entirely 1D characters, Cool powers, multiverse etc.