Invincible Mumu - Chapter 47: Heavenly Training (1)

Su Mo is a late bloomer, introverted and not very good at communicating with strangers.

I thought that my life would be so dull, but after participating in a national game “Star Ring”. Rediscovered the joy of life and embarked on the road to the top of the throne.

- Description from novelbuddy

A good-for-nothing who went missing for three years finally made his comeback! He successfully inherited ancient powers that defy the heavens! Proficient in medical skills and spells, the city was at his whim—everything was in his favor!

Crossing to One Piece world, he became Roger’s younger brother.

Oosuki Masato is an ordinary high school boy who is magically transported to an alternative world, but for some reason his doting, over-protective mother comes along as well.