Super Cool System to Travel Through Time and Become an Invincible Brother

He was hit and killed while saving a girl. He was bound to a super cool system and traveled through time to become an omnipotent invincible brother. Braving the devil's cave, exploring ancient tombs, treasure hunting in the deep sea, gambling in shopping malls, and the ups and downs of officialdom, it's all super fun! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.