Do Not Say Mystery
Do Not Say Mystery is a manga series.
Also recorded as Mystery to Iu Nakare.
In detail
It is recorded as the work of Yumi Tamura. The recorded language is Japanese.
It is associated with Japan.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Don't Call It Mystery”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q85874073: Do Not Say Mystery
Consult the source