Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Volume 18 Chapter 12. The Adventure of Pochi (2)

The young man named Kehma who was summoned to another world, and the useless Goddess Laura whose only strong point is having huge breasts.

Gaining a cheat skill that absorbs the abilities of what he eats, he enjoys his new adventurous life eating delicious monsters and playing with the easy to handle Goddess, all while becoming wildly overpowered/peerless in this otherworld fantasy.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

A tribulation lightning strike allowed her to be reborn with a mutated space. Parents are deceased, but not to worry, she has an agricultural expert grandfather. People bully her, but that's no problem, as she is a cultivator. The space is barren except for a single broken sapling that only consumes precious metals. The sapling indignantly asked: Others eat grass and give milk, what about you? The little immortal sapling spat and said: Here, remember to exchange it for some RMB.

Mochizuki Touya, a 15-year-old boy, who got zapped by a flash of lightning due to a freak accident caused by God, wakes up and finds himself face-to-face with God.