After clearing Bad-Mouth Sugoroku, Yuichi and Tenji find themselves trapped in a dark cave for three days. During their isolation, Tenji makes the shocking revelation that he had already experienced a Tomodachi Game in the past. Meanwhile, a team of new opponents lies in wait outside, anxious to challenge the two partners to a grueling third game.
We don't know the details yet, 
but it's safe to say it was a suicide.
.لا نعرف التّفاصيل بعد، لكن يمكن القول أنّه انتحار
Wir wissen noch nichts Genaues.
Aún no lo sabemos con seguridad.
Todavía no lo sabemos seguro.
On n’est encore sûrs de rien,
Non sappiamo ancora i dettagli,
ma pare che si tratti di suicidio.
Ainda não sabemos os detalhes,
mas podemos afirmar que foi um suicídio.
Детали пока неясны.
Но всё указывает на самоубийство.