Only Sense Online (LN) - Volume 8 Prologue

Twin Brother & Sister died after experiencing the acrimony of the World.

However, fate had something else stored for the pair. Somehow a God name Lust God was mysteriously reborn within the Boy's body and discovered something which left him awestruck!

Completely forgetting about the mystery of his Rebirth the Lust God then discovered another anomaly within the dead body of the Boy's twin Sister.

Afterward, it finally stuck him...

This is the Story of the Lust God who was born into a world that was filled with real monsters and in human clothing!

Follow him throughout his journey which is filled with Blood, Debauchery, Schemes, and most importantly Lust...

1. Download a suspicious game
2. Catch a few magical pets as partners
3. Go through interesting daily routines and lead the pet shop to a whole new level

- Description from Novelupdates

You take up a student career.

Student career upgrade to lv.7

Acquired skills: primary school knowledge, junior high school knowledge, high school knowledge.

You take the college entrance examination,

You got a perfect score.

Your basic occupation has been upgraded to lv.9, and the job transfer system has been activated.

You change jobs to become a scientist, you gain R&D skills

You use research and development skills to get space fortress construction technology

You use R&D skills to gain starship technology.

You are invincible.

- Description from novelbuddy

With a marriage contract forcefully done, he married her, and all she could do was comply, and resent him deeply for that and for all the following misunderstandings they faced.
However, it was already too late when she understood she actually loved him.