Kaiser is your boyfriend. He is a man who has a split personality. When the sun rises the Kaiser will be kind and gentle. But when the sun sets, Kaiser will change into someone different, into a cruel man and not himself.

only you can make Kaiser return to normal on that terrible night

In a quiet night, the Kaiser brutally and indiscriminately destroyed all the servants in his mansion. You woke up from your sleep with a start. You see blood and corpses scattered everywhere.