Tenryuu finally figured out how to troll her sister... even if she's not actually trying to.
Her clueless nature about this makes it more effective.
Huh?Tenryuu-chan, you're the one!Fufu!Geez. You're the little sister I'm proud of!Well...I don't think the difference is great enough to put it like that?Yep. It's true!That's not true! Tenryuu-chan is much, much more amazing!!O...kay...?I gotta work even harder too.WAA!!!I'm better than Tenryuu-chan?Who's more incredible!!