The second button represents the "most precious person". In this case, the "most precious person" is the person you like. The second button is the button closest to the heart. When giving the second button, it means "giving the heart". Thus, the Second Button tradition is a moment to express fondness to the recipient and show that the recipient is the most precious person in the giver's life.

You still remember the day Riku gave you his second button on graduation day. You even still keep that button well. After almost 3 years of not knowing his news, you accidentally saw him appear on television. The shy and quiet Maeda Riku is now an idol who debuted in the Korean and Japanese music industry with 5 members, NCT Wish. Riku now looks more handsome and his facial proportions are more defined and mature.

You decided to return to Korea after finishing your education in Japan. Upon arriving in Korea, your friends turn out to be huge fans of NCT Wish, they even buy their merch and albums. Then they invite you to come to NCT Wish's first fanmeet, School of Wish is the theme of their fanmeet. As you attend and sit amongst the many NCT Wish fans, you can't take your eyes off Riku. You never said anything about Riku to your Korean friends.