The Vengeful Extra's Ascension - Chapter 18: Gifts!

Having lived a normal life all his life and died without being able to fulfill his desire and when he’s given a task by a god, watch how he takes the protagonists girls while making it hard for the hero.

No sign in, no punch card.

Do not rely on breathing, do not rely on walking, do not rely on heartbeat.

The system is produced in one step

- Description from novelbuddy

In a world of endless star fields and interdimensional wars, the wizards' floating city conquered one world after another.At the wizard academy, through blood-stained exams, the towering wizard tower sent wizards batch after batch.Becoming an apprentice wizard, Richard activated the miracle furnace deep within his soul, where constant refining of materials granted him knowledge and skills...The veteran's weapon could be refined into legendary martial arts techniques.The ancient wizard's encrypted notes could be refined into lost knowledge.The remains of brutal monsters could be refined into monster bloodlines.In this era of great voyages in the wizarding world, Richard was destined to become a leader of his time.

For the wine to be drunk on her wedding night to actually have been a cup of poison and for the one to poison her to be her husband, who would believe it?