Magika no Kenshi to Shoukan Maou - 2.5.2 — The Qualification of the Living

A fluffy, sweet modern GL story about a mature older women and a cute university student.

Listen here, because I've seen it with my very own eyes.William Oh was born on the hundredth floor of The Tower, to the greatest Climbers of the ancient world, steeped in the Tower's lethal miasma from the moment he drew breath, giving him strange and unnatural powers.They say he is an immortal being who circles the dreams of mortal men, resurfacing wherever the need is greatest. Those who disparage him will fall into despair, but if you're a Climber in a tight scrape, look to the sky and say a little prayer.Maybe he will appear?Odds are probably better if you pay for my drink.- Rumor overheard on a 1st Floor Tavern. Originator did not pay his tab.

Being able to learn any skill immediately, and just by raising its proficiency, stand at the summit.

He is the World Chef Association Honorary Chairman, having the title of the World Chef God.

He is the greatest composer, pianist, and conductor after Beethoven and Mozart.

He also has the title of Underground Racing King, Fist King, Gambling King, Giant of the Stock Exchange Market, Arm of the Industries and King of the Skies.

He who has a miraculous learning ability and can stand at the apex of all things if he so wishes for it, the Omni Genius.

- Description from Novelupdates

An alternate realm invaded and the game descended. The entire Blue Planet was digitized.

Faced against countless waves of monsters, some people downloaded the Holy Knight module and became angels of light that helped the world reach enlightenment.

Some people downloaded the Warrior Monk module. They focused on their training and reached enlightenment overnight. With their fists and legs, they fought and made a name for themselves.

Chen Kun, who transmigrated to this world, downloaded the Boss module.

Each time he leveled up, his growth attribute improved multiple fold, and his attribute points multiplied. More importantly, all his skills were automatically unlocked as boss skills!

When the hole between the two realms opened and the gods of the alternate world came pouring in to invade this world, what awaited them was Chen Kun, who sat high up on a throne.

When the gods of the alternate world saw his terrifyingly long health bar as well as his boss skills that granted instant death and control immunity, reduced damage, true vision and many more skills, they despaired.

Chen Kun smiled and said, “So, are you the ones who will challenge my throne?”