Yozakura Quartet: Hana no Uta just skipped an entire arc and summed it up in an opening….
Apparently that arc was covered in one of the recent OVAs
What ? If you’re talking about what’s covered in Tsuki ni Naku, it’s supposed to be a sequel to Hana no Uta right ? If you’re thinking about Zakuro’s story, it’s covered in Hoshi no Umi, 3 OVAs that you were supposed to watch before Hana no Uta.