The extra is a fox eyed jester - Chapter 1: Isekai-ed

It is said that humans only reveal 5% of their DNA. The person you perceive yourself to be and the person others judge you for is determined by this 5%. No one can know what is in the hidden 95%.

Logan ends up in a world of familiars, where everyone can make a contract with a familiar to get super power and grow stronger.The first familiar Logan summons is a legendary angel, and it draws a lot of shock and envy.But fate messes with him, because right when Logan is about to make a contract with the angel, the angel looks down on his plain background.“Someone as noble as me—how can I be driven by a low-born bloodline?”After that, she goes over to the noble-born school beauty, leaving the whole crowd full of sneers.Right then, Logan awakens a system, and he can see all a familiar's hidden info and evolve their bloodlines, talents, and skills without limit.“Since it won't listen, I'll switch it out, the next one will be more obedient!”With everyone laughing at him, he just made a contract with a low-level succubus.“A low-level succubus? Once this kind of familiar gets off the bed, its fighting power isn't even as good as a hyena!”“A loser with a succubus—this kid will never have to worry about women anymore, haha!”...Many years later.When demon fire lights up the stars and blood-red wings cover the sky, people finally realize—standing behind Logan are all those ancient, scary beings from myths and legends.

Su Yan adored Xie Yu for many years and finally got what she wanted, but Xie Yu ran away on the wedding day, making her a laughing stock. At that time, Bai Xingfan appeared in front of her. He held a black umbrella in his skeletal hand to shield her from the heavy rain, and the other hand stretched out in front of her with a gentle and determined voice: “Don’t be afraid, still With me.” Su Yan was stunned with tears in her eyes for a long time, and finally, she reached out to Bai Xingfan.

- Description from Novelupdates

After the 25th failed blind date, Chen Ji learned from the pain and decided to take the initiative to find a blind date on a public account in the same city.

The official account is very powerful, and I recommended four girls to him:

The first one, female, human, 28 years old, doctor, lived in the apocalypse four months after the sun went out.

The second one, the Nine Realms Human Race, the Empress of Destiny, fell asleep for 100,000 years after being invincible.

The third one, the daughter of the sheriff, is an ancient lady who is good at embroidery and loves poetry. She claims to have written a sequel to “Dream of Red Mansions”.

The fourth one, the descendant of the god, the saint of light, exudes a black aura all over her body, her limbs are twisted, and she is locked at the bottom of the church to pray devoutly.

At first, Chen Ji thought they were playing role-playing, but he didn’t realize until later——

“No, are you all real?”

“How does this allow me to meet you on a blind date?”

“I just had a blind date, how did I save the world?”

- Description from novelbuddy