It opens with 'you know' and ends with 'hero'

In three lines

• BEANSPROUT's full-length live session is up.
• The four songs are '알잖아', 'My Friend', '겨울의 온도' and '히어로'.
• The first two name an existing acquaintance; the last two name a temperature and a person.

The order of four

Order	Song
1	알잖아 (You Know)
2	My Friend
3	겨울의 온도 (The Temperature of Winter)
4	히어로 (Hero)

It begins with people who already know each other

The first title is '알잖아' — said on the assumption the other person already knows.

That phrase skips explanation. It isn't something you say to a stranger. The set begins already presuming a relationship.

The second song is 'My Friend' — the name of the relationship appears. What was presumed in the first song gets stated in the second.

Putting a temperature in a title

The third song is '겨울의 온도' — pointing not at the season but at its temperature.

Say winter and you get the whole season; say temperature and you get something measurable. The title steps down one level, from abstraction to a figure.

Except the number isn't given. A structure that points at something measurable while leaving the value blank.

A band named after bean sprouts

The group is BEANSPROUT.

Bean sprouts are a common, cheap ingredient. As a band name it sits on the modest side — not a grand or flashy choice.

And the last song by a band with that name is called '히어로'. Bean sprouts and a hero inside one set. Band name and song title are opposite in scale.

Today, like this

Play the four in order. Whether the movement from people who already know each other to a hero carries through in sound is the first thing to check.

Then look for the temperature in the third song. The number isn't in the title, so the song sets that value.

The last song, '히어로', is the opposite scale from the band's name. Listening while remembering 'bean sprout' changes it.

A new song has arrived at the playground today.