不痛不痒夏年之约
[bù tòng bù yăng xià nián zhī yuē]
This internet nickname 'No Pain No Itch Summer Agreement' implies a kind of carefree or indifferent attitude towards the promises and memories in summer. In Chinese culture, summer is a season always full of memories and stories for students, as the long summer vacation is usually the happiest time in school days and often the time when youth partings happen. So the name could represent either a vow without intense emotions during those easy-going summer days or the nostalgia with an indifferent touch about the good old summertime.