Tekkonkinkreet
Tekkonkinkreet is a manga series.
Also recorded as Tekkon Kinkreet.
In detail
It is recorded as the work of Taiyō Matsumoto. Publication is recorded by Big Comics Special.
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
“Tekkonkinkreet”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q111988774: Tekkonkinkreet
Consult the source