"Subaru's first day at the Roswaal mansion begins for the third time. The first time, he grew weak and died of unknown reasons in his sleep, and the second time, he was killed by an attacker. The sound of chains that he heard as he died the second time replays in his mind, waking him in a terrified, cold sweat. He has no idea what the killer is after, let alone who it is, so he makes a plan to leave the mansion on the fourth night and watch for the attack to happen.

Standing before Subaru is someone he never expected. The truth of the attacker's identity leaves him bewildered, and he feels everything crumbling around him as he dies yet again. Then, for the fourth time, he awakes on his first day at the Roswaal mansion. This time, the night of the fourth day passes without incident, and Subaru is stunned as he greets the morning of the fifth day... but then the situation takes an unexpected turn."
Also, what does "tan" mean? 
Where'd it come from?
وما الذي تعنيه "تان" أيضاً؟ من أين أتَتْ؟
Und was heißt dieses „Tan“?
Woher kommt das?
¿Y qué es eso de "Emi"?
¿Por qué me llamas así?
¿Y qué es eso de "Emi"?
¿Por qué me llamas así?
Et c’est quoi, ce « Émi » ?
Tu le sors d’où ?
E poi cosa vorrebbe dire "Emiliuccia"? 
Da dove viene?
E outra coisa, o que significa
 "tan"? De onde veio isso?
А откуда взялось слово «тан»? 
Что оно значит?