A strong connection of trust and affection between friends.
友情の絆、信頼と愛情の強い結びつき。 (yuujou no kizuna, shinrai to aijou no tsuyoi musubitsuki)
"Their bond of friendship grew stronger over the years."
"彼らの友情の絆は年月とともに強くなった。" (karera no yuujou no kizuna wa nengetsu to tomoni tsuyoku natta)
to laugh uncontrollably
To continue practicing a custom so that it is not forgotten
to stay calm by seeing things realistically
to force someone to leave
My personal opinion or suggestion
a feeling of uncertainty that spreads quickly