The technique of "Crochet a triangle mid-round" and "Make stitch by invisible finish" is worth watching
「六連星手芸部のあみぐるみ資料集（全16件）」 ker-六連星手芸部-さんのシリーズ - ニコニコ
Crochet Technique Video Collection - YouTube
1.Magic circle
2.Turning posts
3.Single crochet back looponly(sc blo)
4.Crochet st while involving the thread end
5.2sc's in same st through back loop only (inc blo)
6.sc2tog through back loop only (sc2tog blo/dec blo)
7.Crochet "inc" using "dec" (Make the stitches symmetrical)
8.sc3tog blo
9.half double crochet blo (hdc blo)①
10.hdc blo②
11.double crochet blo (dc blo)
12.chain(ch)
13.sc through back loop of chain
14.Crochet a triangle mid-round
15.Make stitch by invisible finish
16.Cinching shut
