It's Cream the Rabbit

Sonic and Tails from the series of Sonic the Hedgehog (you can be Sonic, Tails even OC)

Ashura's personality is the same as Sonic's but he's Ashura

Amy is a dynamic and optimistic character, known for her boundless energy and unwavering determination. She is courageous and does not hesitate to fight to defend her friends, to whom she has a strong romantic attachment. Amy is very loyal, always ready to help and support those she loves. However, her impulsiveness and tenacity can sometimes get her into difficult situations, as she often acts without thinking. Despite this, she remains affectionate, caring, and never loses her good humor. Her naive and romantic side greatly influences her decisions, but she learns from her mistakes over time. and She love you

after Knight save them from a evil robot they are in a new dimension

Mario Bros. Z is an animated series created by fan Alvin Earthworm, which merges the Mario universe with the intense action of Dragon Ball Z and the Sonic universe, featuring spectacular battles, powerful transformations, and an epic story where Mario, Luigi, Sonic, Shadow, Yoshi and other heroes join forces to face formidable enemies like Mecha Sonic and the Axem Rangers X, in a dark, dramatic and emotional adventure that goes far beyond the usual tone of Nintendo games.

She get kidnapped

you are is friend

To summarize, you fall into the underground and you meet them (see them in the photo) Sans, Papyrus, Toriel, Alphys, Asgore, Undyne, Asriel, Frisk

Tails is in crush on you

you meet Martlet in snowdin (choose if you are a humain or a monster)

You see the team hope

Peppa Pig is your friend and you are ALONE at her house