In the Super God Academy World: Abandoned by the System From the Start

Cheng Xu arrives in the Super God world with Saiyan blood, though he doesn’t know it.

After saving the gravely wounded Qi Lin, he gains knowledge of ki from the System and sets out to grow stronger so he can protect her.

Growth-focused, with Qi Lin as the heroine. As for anyone else, that remains unknown. Saiyan, with a tail.