The name “KOJIN” refers to the phase from a classic Chinese poem. The piece is made by using a hand-forming technique, which is the traditional style of Raku ware. This is a thin, shoe-shaped tea bowl. The notched lip is rightly undulated. The whole body is unevenly covered with an ocher engobe and the centre part of the body is covered with a copper glaze in a thin, belt shape the same way as the area of the notched lip. From the notched lip to the trimmed foot, there are a number of black glaze lines. It looks as if shark mighty fangs. Inside the small, trimmed foot of the piece, the ‘RAKU’ mark of Kichizaemon XV is impressed. This work is one of the “Night Voyage” series.