The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
MyAnimeList[2] and Wikipedia[3] only give a 2027 premiere, so the pin sits at the end of that year.
MAL News covers Oshi's announcement of the anime with Studio M2 and the lead staff.[1]
Wikipedia says the Studio M2 adaptation was announced July 4, 2025 and is set to premiere in 2027, with no day given.
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