Jikuu Mahou de Isekai to Chikyuu wo Ittarikitari - Chapter 4 – KING IN THE BARRIER

The celestial celestial beings who lived for more than 100,000 years were born and reborn in a small monk in a human world.
His motto: “It’s not as good as a medicinal medicine for ten years of hard work.” “Even if you practice a copper-iron bone, it’s not enough for my soldier’s attack.”

- Description from Novelupdates

He kept her by his side, never letting go! “Please, can you let me go?” “Impossible,” he said, “unless you're no longer my only one.” After they fell in love, he declared possessively, “I want to keep you by my side, to make you belong only to me. You can only love me too, your mind, your world, must be filled with only me.” Yet his domineering love sent a chill through her.

“I can definitely become an immortal,” she said.He looked her up and down, sneered, “You can indeed become an immortal, a Lazy Immortal.”She breathed a sigh of relief, fully self-assured, “A Lazy Immortal is still an immortal.”He was speechless. Great, very powerful, who says a lazy person can't become an immortal~

A strange store which sells everything suddenly appears in the town. The Owner of the store is a young man and anyone who tried to mess with him %$#@.

The products of the store are expensive, yet the queue outside the store never stops.

“So what, If you're an emperor. I'll fight to the death with you if you try to break the queue.”