In January 2013, Chiaki Ishikawa starred in a play Kagerou Pain (陽炎ペイン) which featured her singing several of her songs.

On May 13, 2013, Chiaki Ishikawa appeared at an in-store live at Tower Records Shinjuku with Natsumi Kon to promote the OP and ED singles from Ginga Kikotai Majestic Prince.

in July 2013 Chiaki Ishikawa performed in a concert in Shanghai, China with Maon Kurosaki.

On August 11, 2013, Chiaki Ishikawa performed four songs live at Otakon 2013, opening for Yoko Kanno's PianoMe concert.

On August 29, 2013, Chiaki Ishikawa held a sold-out solo concert in Shibuya O-East, singing 19 songs.