Bon jeon(Main Hall) Hyeonchungsa is the shrine where the portrait of Chungmugong, General Yi Sunsin is being kept. In 1704, Confucian(scholars) of Chungcheongdo presented a memorial to the King to build a shrine and the court allowed this in 1706. That shrine was located at the site of present Chungmu Education Institution. On the April of 1707, King Sukjong granted the frame of Hyeonchungsa and in 1727, moved the grave of his nephews - Kang mingong, Lee Wan and Chungmingong, Lee Bongsang here to be enshrined together.

In 1868(the 5th year of King Gojong), Hyeonchungsa which also functioned as a Seowon(a lecture hall) was abolished by Daewongun's seowon removal ordinance and on February of 1906, Confucian scholars who was about 'Eulsa Joyak(an unequal treaty between Joseon and Japan)' built a monement of Hyeonchungsa yooheo.

Afterwards, the grave of Yi Sunsin was in danger of passing onto a Japanese‘s property during the rule of Japan . So, nationalists who heard this news organized "a group for preserving Yi sunsin's remains" and raised fund and raised fund to rebuild Sadang on June 5th of 1932 in order to put the spirit of nation to right by raising high the great achievements of General Yi Sunsin. According to the consecrated ground indication of the late president Park Jeong-Hee, the main hall of today was newly constructed and the old one had been used as Beajeon before being moved to the side of 'the exhibition hall of remains".

The festival has been held every year by the government in memory of general Yi Sunsin's birthday on 28th of April.