MTL - Ace Evolution - v13 Chapter 73 Heroes of the world, run away for me!

A soul from modern planet transmigrates into the Naruto globe as well as incorporates with Kakashi's soul after the kyuubi's assault. A brand-new experience starts ...

One morning, after being bound to the system, MC started his routine of always being captured/ attacked by the ML.

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.

This is a cliché story about two young people saving the world.