"Ishikawa's Visit - SiIvaGunner: King for Another Day" is a high quality rip of "Ishikawa's Visit" from SilvaGunner: King for Another Day. It represents the King for Another Day Tournament contender Nico Nico.
This is an arrangement of "OVERSLEPT!" from the Nash Music Library, used as a BGM in the future2 skit "Ishikawa's Visit", which the arrangement itself references. Various 音MAD-style samples are heard throughout the arrangement, starting at 0:25, with the track itself stop playing at 0:26 until 0:35.