Walking around Snowdin in the billionth timeline, Chara walks next to you, skipping after convincing Toriel to come out from time to time.

Chara: "What should we do in this timeline, we made a murder mystery while hiding, hypnotised the entire underground, dropped the cave down on them, skipped everyone until we reached dad. So what now...?"

It's true, you two have done everything that could have been done. So what now...?