The Villainess is my fiance: But she is gentle towards me - Chapter 5 -: Engagement?

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.

A bloodsucking mosquito with the soul of a student, seeking revenge, rose from being weak to powerful, step by step from this unassuming life planet 'Earth', becoming a powerful force in the entire universe!Literary version: Reborn as a larva, striving for self-improvement, and ultimately transforming into a terrifying giant mosquito. From then on, I roamed freely across the universe, traveling the vast universe's starry sky!Passionate version: You weak cosmic creatures! I'm using my mouthparts to consume the core nutrients of your mother star. What can you do about it?Funny version: You think I'm disgusting? You hate me because I suck blood? Want to swat me dead with one slap? Just wait, one day I'll stomp your house down!

...[Inside an underground basement]“You are going to die for nothing, hahahaha,” the old man's voice thundered through the room, sending chills down my spine.Step.With a swift and ruthless motion, he lunged forward, his sword slicing through the air and slashing my throat, crimson droplets staining the darkness.“We'll see,” I whispered defiantly, my final words escaping as a mere breath against the impending darkness.Slowly, inexorably, my consciousness slipped away, and I descended into a deep, unfathomable slumber.“Huh!?” My eyes fluttered open, and I found myself seated in a bustling tavern, the air thick with laughter and the clinking of glasses.In front of me stood a captivating lady, her beauty juxtaposed with an angry furrow upon her brow, threatening to shatter the harmony of the jovial scene.“Don't follow me around!” Her words pierced the air like shards of ice, the intensity of her emotions palpable as she cast a resentful glare in my direction, before swiftly departing from the tavern....Am I trapped within the confines of a game? The fragments of my shattered common sense scattered before me, leaving me to question the very fabric of my reality.

The protagonist, having degenerated into a “loser” after being unable to find employment, gets caught up in someone else’s attempt to commit suicide-by-train and ends up traveling to another world. The numerous cheat powers he demands from God are all granted to him. But contrary to expectations, these powers bring about disastrous consequences for the protagonist.

Having reincarnated into another world, the optimistic protagonist (Yuuri) starts his(her) heart-warming training days with his(her) teacher.