1theK put up a teaser titled "[Teaser 1] Splayit(에스플릿) _ Last bus(막차)" at 00:00 KST on August 9, 2026. It runs twenty-six seconds, and it went to the distribution channel rather than an artist channel.

At the time of writing the upload had drawn 2,018 views, with 132 likes and 2 comments. The description under it is not the usual channel welcome — it is a release card, three lines long: "Artist : Splayit(에스플릿)", "Title : Last bus(막차)" and "Release : 2026.08.13".

That third line is the one to keep. It gives a date and only a date — no hour is written next to it, and no hour appears anywhere else in the post. So the release is on the calendar for August 13, and when on that day is not something the post tells you.

After those three lines the description is a list of 1theK's own channel and social accounts. There is no label name, no production credit, no link to any account belonging to the act, and nothing else about the song.