Tensei Shite Seichou Cheat o Te ni Iretara, Saikyou Skill mo Tsuita no desu ga!?

After dying in a traffic accident, high school student Hayato Katsuragi is reincarnated in another world as Reivelt Runwalker, the son of a noble. The goddess grants him a cheat skill with no level limit, but he also gains a fearsome ability called The One Afflicted by Hardship, making him expect a difficult life. Reivelt decides to train and grow stronger. As he receives lessons, Reivelt enjoys life with his cute maid and little sister. Their peaceful days are abruptly interrupted when a huge horde of monsters attacks them.