Yeah that is true. But they will be again friends and even that they don't have memories of her they will be close with her.. Jiho didn't have memories of her in the begging either but he will feel always that something is missing from him and when she comes back he will start having memories. He really loves her and is not so obvious in the begging but if you look through the story you will see that he is always there next to her supporting and clearing the way for her.. he is truly amazing. When I read the novel I fell in love with Jiho's character. He deserves the role of the ml.

The spoilers got me fucked up omg
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Spoilers
Apparently Dani will go back to her world and come back and nobody is gonna remember her except silver hair guy.