Toaru Majutsu no Index - Volume 10, Chapter 8: The Reason for the Clenched Right Fist. Light_of_a_Night_Sky.

On his coming-of-age day, Argolaith’s mistake bound him to a mystical magic unseen in the world. As his powers grow, they threaten to reshape the realm—but can he master them before they bring ruin?

Xiao Jinghuai's home has a little thing, soft and adorable, lively and mischievous.Rather than calling her a wife, it would be better to say it's like having another daughter.Some people say: “Young Master Xiao pampers his wife to the point where she only needs to open her mouth to be fed, she's almost become useless!”“Whoever says that, throw them into the sea to feed the sharks!”Another person says: “Young Master Xiao's wife really doesn’t look that great, nowhere near as beautiful as so-and-so!”“Whoever says that, gouge out their eyes to feed the dogs!”Yet another says: “Young Master Xiao spoils his wife excessively, he has become a tyrant of his generation!”“Who says so?”Turning around, just to see the girl's bright and charming little face, “I said it! So what do you want?”He pulled her into his arms, didn't want anything, just wanted her to be his little princess...(Even in this world full of charms, I only have eyes for you.)

This novel is also known as A Stay-at-home Dad's Restaurant In An Alternate World

There is a very strange restaurant in the City of Sin.

Elves and dwarves must share a table, orcs are strangely well behaved, dragons are only welcomed on the small square in front of the restaurant, and the demons must bring their own stool.

This strange restaurant with their strange rules continuous to attract a long line of customers.

“This place serves the best food! The chef of this restaurant is a genius!” Some of the guests in the restaurant left glowing reviews. But these guests have a word of warning for other guests, “No matter what you do, never, never attempt to kidnap the boss or try to ‘eat and run’. You will die.”

A cute little girl stood near the door, and demanded in her tiny voice, “You have eaten the food, now pay up, or I will beat you to death.” The five-meter tall dragon suddenly felt a chill running up its spine.

- Description from novelupdates

David crossed over to a new planet after getting killed on his previous one. This new planet is dangerous and filled with supernatural creatures like monsters and demons. Without enough power to protect yourself, you could get killed at any time.Unfortunately, David only has average talent and struggles to progress on this new planet. After 3 years of trying to become more powerful, he is eventually expelled from his warrior school due to his average talent.Faced with this situation, David doesn't know what to do. He is unsure if he will be able to survive on this planet or protect his family. For 3 years, he has not received any kind of help or advantage that would make his life easier.Ultimately, David almost loses hope and accepts his fate as an average person. However, just when he has given up, he suddenly receives a cheat or “Golden finger” that gives him the chance to become as powerful as the other geniuses on the planet.Will he get the chance to become powerful? On this new planet, he can be killed at any time by supernatural creatures. To learn more about David's journey, continue reading.