The K-Star Next Door S04 E02 TXT returns as a whole, why did SOOBIN apologize?

Happy Hawaiian HUENINGKAI's English skills revealed! TAEHYUN with a flashy career almost got attacked by Jonathan? (feat. shadowboxing) SOOBIN in the center of controversy, explaining the secret ad & a fight with BEOMGYU! TXT sings their unique sentimental and overwhelming new song 'Deja Vu' live~♬