Lets be real Kase dont deserve to be cheered on by Yamada after all the bullshit she did to her involving a race…So yeah, Yamada is better off just politely declining, hanging up, spending the time getting ready and going over to the event and cheering Kase on... But knowing how nice Yamada is... I'm pretty sure she'll end up going to the store to help out and then pushing herself to get to Kase and maybe even collapsing.