Chasing the Dawn

Lucias Landion.

A transmigrator whose goal is to become a god.

But

When did your goal become seducing the God of Light? What happened to your ambition!

The System smiled calmly.

The God of Light had been single for over a billion years, aloof and chaste. Countless mortals and gods had tried and failed. The System refused to believe that Lucias, a novice with only theoretical experience, could pull it off.

Still, some encouragement was in order, even if the System thought that becoming a god just to seduce a man was... (covers face)

Then, much later, faced with the nine levels of purgatory in the divine kingdom, the System's expression went blank.

Damn, he really did win him over.