In The Supreme Fantasy World, Back In Time And Do Whatever You Want! - Chapter 16 - . Soul Biting Ants!

Vincent Strider was a gun for hire who made a living by killing whoever it was his clients wanted dead. But during one mission, he died in a fierce gunfight. However, death was not the end for him. Vincent found himself reincarnated in another world, facing a floating interface that flickered before his eyes.[Synchronizing Host!][Military System initializing.]Vincent found out that in this system he received, he can summon soldiers, tanks, aircrafts, and even warships! This is going to be exhilarating.

There exists eight hardships of human life- living, aging, being sick, dying, resenting, parting with loved ones, being unable to let go, and being unable obtain something.

In each life, each person will experience their own hardship. Once they obtain happiness, they are furthermore unable to let go. Whether it would be heartfelt love or resenting someone down to the bone, would it matter? As long as that person’s bone has my name, it would be good.

- Description from Novelupdates

Ukei Kaito fought a desperate struggle in order to fulfill his role as a summoned hero. He defeated the Demon Lord and saved the very world, only to meet an end filled but with betrayal. The companions that he’d trusted throughout his journey betrayed him and killed him by sticking a blade through his chest.

Everything has changed since Earth became a collectible.

Modules have become the source of all superpowers, and the adventure dimension has become the best way to obtain modules.

Internal Force Module + Meridians + Acupoints + Flame + Knife = Burning Wood Knife Technique?

Magic module + spell model + spiritual guidance + missile = magic missile?

Internal force + blood + space + life + death + grinding + transformation +? ? ? =? ? ?

Lu Bai, who received his own death compensation, began a journey of constantly gathering death wool.

- Description from novelbuddy