Isagi's team cinched a win due to the awakening of Barou as a villain on the field. To cause more chemical reactions in the fourth stage, they picked one player from the other team, who demonstrated ego to devour them during the game. In the meantime, Bachira and the Top 3 are looking for the next opponent. Rin sees through Bachira's "monster" during their training, which forces Bachira to face his own ego.
If that happened, he'd go back to those days 
where he felt like he might die of loneliness.
إذا حدثَ ذلك، فسيعود إلى تلك الأيّام
حيث كان يشعر وكأنّه قد يموت من الوحدة
Wenn das passiert, …
S’il ne trouvait personne,
il retournerait à son ancien quotidien
In tal caso
Se isso acontecesse, ele voltaria pra esses 
dias que parecia que ia morrer de solidão.
Тогда его снова будут ждать
до боли одинокие дни!