Valentine's Day just happened and many significant others like to send their loves something very special. Singing grams are fun gifts that are often given at various holidays.
Lunchbox decided to deliver Singing Valentine-Grams for some people that he didn't know. He wasn't asked to do this from someone, he just decided to go out and deliver singing Valentine-Grams to random strangers at their work. He looked at their name tags to see who they were and then guessed that they had a potential significant other to say that the Valentine-Gram was from their partner.
All of the strangers on the other end of these singing Valentine-Grams were really pleased and happy to receive the gifts, not one of them turned him away... even with his off pitch singing!