Yeah, did not get Levitya. Spent all my energy and some kobans. RNG does not exactly make for good gameplay when that is the only variable. Just make it so using all the energy collected during the event period gets your chance to get the girl close to 1. Spending kobans adds to that. Keeping players in the dark about their chances is truly crappy design.

I guess this means no Levitya for me ever. I missed the boss girls from the previous event, too. No matter I spent all my energy there.