Toaru Majutsu no Index - Volume 16, Chapter 2: The Men Who Stood Up From Defeat. Flere210.

At the beginning, he acquired a piece of land worth billions, but Su Ming used it to cultivate crops!Row after row of cucumbers, plant after plant of chili peppers, shoot after shoot of bamboo shoots… …Everyone couldn’t understand: “Having a billion-dollar land and using it for farming? Su Ming, what’s wrong with you?”Yet, Su Ming just smiled mysteriously.Do you really think, naively, that the cucumbers I grow are just ordinary cucumbers?The joy I find in farming is something you can never imagine!

I’m in a secret, bad romance with a love dependent student—「Having a secret meeting with a student one is in charge of at school… Isn’t it exciting?」The special relationship with Kirihara that no one can know about began when I took up my post at Mori Kawara High School as a teacher.At school, she’s the serious student council president who has earned a lot of trust from other teachers, but when it’s just the two of us, she becomes mischievous, clingy, and jealous.On weekends, I cook meals at her place, play games together, and pamper her as if we were lovers.Unable to reject her because she knows my weakness, and despite knowing it’s wrong, we continue to pile up secrets little by little every day…「Sensei, my feelings of liking you have grown very strong.」As Kirihara openly confronts me with her feelings, the emotions I’ve been holding back grow even stronger.Even though it would all be over if it were exposed, that sense of immorality ironically only accelerates things further—

Video game streamer Jing Yu, momentarily misstepped, and found himself in a strange professional gaming team.

Solo laner: Even if I have my eyes closed, asleep, dreaming, I can still kill you all!

Mid laner: Retreat? Not going to happen. Even if I only have one drop of blood left, I’m going to kill you all!

Marksman: Attack range advantage? I like to battle close-range! If you aren’t a coward then don’t run, let me kill you all!

Support: Support? As if! Wait until I switch to an AD build, then I’m going to kill you all!

Jing Yu: ……

Jing Yu: All of you, retreat! I’ll be the one to kill them!

- Description from Novelupdates

In a future timeline, the earth was visited by a species known as the Slarkovs.
Having lost their home planet and in search of a new one, earth was the next habitable planet for them.

Humans and Slarkovs made a deal with each other in return for the Slarkovs living on earth.
The Slarkovs traded their technology and knowledge for a new home.
They were similar to humans except for some of them who had slight differences so fitting into the society wasn't a problem.
Over the years Slarkovs and humans began to mate with one another and reproduce offsprings.
This in turn created a new species known as the mixed-blood.
Centuries later mixedbloods could tap into their bloodline and perform unimaginable feats.

Gustav born into an age where bloodline determines everything, struggles to fit with a useless bloodline.
His bloodline only grants him the ability to change his hair color, destroying his hopes and dreams for a great future.
His fate is turned around when an unexpected situation leads to him finding a system that grants him the power to unlock and upgrade bloodlines by completing quests but he's baffled by two quests with a five-year deadline. Success will grant him unimaginable rewards...
But only one thing awaits him if he fails... Death!

Follow Gustav on his interesting journey filled with unprecedented adventures, danger and death, maybe?