That Time an American was Reincarnated into Another World - Chapter 8: Call

In a world where all magical spells have been captured into cards, those who can build a deck have the most power.The most Arthur could ever hope for was to someday earn a trash-tier spell card. When fate grants him a legendary Master of Skills card, he's thrust into a world of opportunity and danger.To survive and grow strong, Arthur must learn skills. All the skills.

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, and she understood too late she loved him.

But after a life of misfortunes, she’s reborn to the very beginning, the day he told her they were married, and she was determined to cherish him in her second life!

Lin Mu Mu’s life goal is to : grow flowers and plants, and take care of Yun Ting.

Yun Ting’s life principles are : Love Lin Mumu, Love Lin Mumu, Love Lin Mumu!

- Description from Novelupdates

In a normal and average modern world where a prestigious academy nurtures elites in a certain field who are known as ”Supreme“ such as [Supreme Inventor], Allen Walker suffers from being called 'average'. Allen Walker can't accept why he has to be average when a few are fortunate to be born as either a genius or prodigy. After a week of self-loathing, when all of his hope was lost, a sound snap him back to reality, or is it insanity?

Ding!

[A suitable host has been found! Prodigy System at your service!]

Ding!

[Hello darling! Chuu~ Harem Protagonist System at your service! Or do you want my service in bed instead?]

Ding!

[A wild Anti-loner System has appeared!]

Ding!

[Fiction fanatic, praise thee and thou shalt be graced with the Multiverse Traveler System!]

Ding!

...

Before Allen can even choose a system, another too familiar sound harassed his ears.

Ding!

[For achieving a thousand system requests which are a one in a decillion chance to occur, a Supreme Being was forced to use Divine Intervention.]

[Merging all of the thousand systems to create the most versatile and advanced system... Merging complete! Alternate Multiverse Chat Group System has been obtained!]

After accepting the Alternate Multiverse Chat Group System, Allen becomes a prodigy and the Chat Group's Admin and has no choice but to chat with beings from other universes.

Beings with suspicious, delusional, and eccentric names such as [I Love Mathematics], [Lolicon Shota Cultivator With Soul Fetish], [Sword Forge From Chaos], [Self-Proclaimed Genius Goblin Hero], [Reality's Bitch], [Time Manipulator Of The Apocalypse], and [Delusional Modern World Chuunibyou]

The chat group introduces Allen as [Supreme Order] as he chats with the otherworldly beings to find out the secret behind the Alternate Multiverse Chat Group.

Dao Fa leads to spirits, and medical therapy leads to ghosts.

A third-rate university graduate who was supposed to run around in a mess for his livelihood, but because of an inadvertent shot to save people, whether it is extremely peaceful and rewarding for his good people, he has obtained the legendary inheritance of the mysterious arts and medical methods of the experts in the realm of self-cultivation. Another brand new and weird new world!

- Description from novelbuddy