  We present multi-color light curves and optical spectra of V1280 Scorpii
obtained from 2007 to 2012. It is shown that V1280 Sco is the extremely slow
nova and the mass of white dwarf appears to be $\sim$ 0.6 M$\odot$ or lower.
Blue-shifted multiple absorption lines of Na {\sc i} D, Ca {\sc ii} HK, and He
{\sc i*} are detected on high-resolution spectra. We also discuss that an
approach using metastable He absorption lines is useful to investigate
structures of nova shells.
